code: def as_callable(fn):
      """
      Converts nn.Modules ``m`` to ``m.forward``.
      """
      if is_nn_module(fn):
          return fn.forward
      return fn
  
imports: import functools
  import inspect
  import pprint
  import re
  import sys
  import numpy
label_desc: Use image node_id 18 for calling a global function with example usage: as_callable(fn) and returns: fn, fn